Roller-bearing.



IIIHIUI No. 755,992. PATBNTED MAR. 29, 1904.

' 4R. I. BOWER.

ROLLER BEARING.

APPLICATION FILED AUG. 20, 1903.

F0 IODEL. v 3 SHEETS-SEEE PATENTED MAR. 29, 1904.

A No. 755,992.

- R. P. BOWER.

ROLLER BBARING.

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No. 755,992. K PATENTBD MAR. 29, 1904.

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ROLLER BEARING. urmonron FILED AUG. zo, 190s. No MODEL. a SHEETS-Sanma.

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UNITED STATES Patented March 29, 1904.

PATENT OFFICE.

ROLLER-BEARING.

SPECIFICATION forming part of Letters Patent N0. 755,992, datedMarchv2-i9, 1904.

Application filed August 20, 1903,

To all whom, it may 0071/126777.:V

Be itl known that I, ROBERT FRANKLIN BOWER, a citizen of the UnitedStates, and a resident of Lima, in the county of Allen and State ofOhio, have made certain new and useful-Improvements in Roller-Bearings,of which the following is a specification.

My invention is an improvement in rollerbearings, and has` for an objectto provide a novel construction of bearing which willvbe useful wherevera journal-bearing is desired and will be especially usefulin suchbearings as are designed to permit lateral motion by allowing the shaftor journal to slide laterally in the bearing; and the invention consistsin certain novel constructions and combinations of parts, as will behereinafter described and claimed.

In the drawings, Figure 1 is a longitudinal section of a bearingembodying my invention. Fig. 2 is a cross-section on about line 2 -2 ofFig. l. Fig. 3 is a detail view of one of the rollers. Fig. 4 is adetail longitudinal section of the shell or casing. Fig. 5 is a detailperspective view of the inner end ring for the shell. Fig. 6 is a detailperspective view of the outer end ring for the shell. Fig. 7 is a detailperspective view of the cap. FiglS is a detail perspective View of theinner cone. Fig. 9 is a detail perspective view of the outer cone. Fig.10 is a detail perspective view of the jam-ring for said outercone; andFig. 1l is a longitudinal section of the bearing, showing the -liningcomposed of a series of separate rings. Y

In carrying out my invention I construct the shaft A with a keyway a, inwhich operates the key within the bore of the inner or` maincone-section B, said key holding` the cone B to turn with the shaft andat the same Vtime permitting the shaft to move longitudi-- nallyin thebearing. This key may be as shown, or may be shorter, or of any desiredlength.

The cone-section Bis arranged at theinner end of the bearing and has itsinner -or main .portion provided with the conical bearing-surfaceB, madelargest at the inner end of the bearing and graduallyreducing indiameter toward a point at about its middle, from which` Vsuch lateralplay or movement. i

Serial No. 170,144. (No model.)

point projects the tubular threaded extension B2 of the cone-section B.The bearing-surface B of the section B is provided at about its middlewith the annular groove 6', in which operates the flanges on therollers. The outer section D is similar in general shape to the bearingportion Bl of the section B and is threaded upon the tubular threadedextension B2 at the outer end of the section B. This section D hasits'loearing-surfaceD conical, similar to but reversed with respect tothe section B, and in said surfaceD, at about its middle,is formed theannular groove d for the flanges on the outer series of rollers.` At itseXtreme outer end the tubular threaded extension B2 has a reducedthreaded extension b2, on which threads the jam or safetynut C, whichabutting the outer end of the cone D operatesrto lock said cone-sectionD vin any 4desired adjustment upon the' tubular threaded extension ofthe cone-section B. By preference the threads on the tubular eXtensionB2 and on 'the reduced portion b2 are reversed, one being ri'ght handand'fthe" other leftY hand, so the nut C will operate to securely lockthe section D when turned thereagainst, as shown in Fig. 1. By the'described construction it will be noticed I provide upon the shaft Acone-sectionswhich can be adjusted to take up wear or for any otherpurpose'with1 out necessitating Ithe provision of threadso'r the likeupon the shaft'and which will permit the shaft to move freely throughthe bearing topermit any de siredlimited longitudinal play of the shaftin the bearing.. as maybe desired. When used on line-shafting and thelateral movement is vnot desired, collars lmay besecured by set-screwson the shafts to prevent The rollers E are alike, so the description ofonevwill answer for all. It will be noticed, however,` thatI dispose therollers in two circular series, the inner series having their smallerends arranged at the middle of the bearing and the outer series having.likewise the smaller ends of the rollers arranged near the middle ofthe bearing and a'djacent to the inner ends of the bearing-surfaces ofthe cones'ections. Each roller is made tapering toward one end and hasits larger end rounded at e,

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so it will roll against the end ring, presently described, somewhatafter the fashion of a ball. -Between its ends the roller E is providedwith a circular projecting iiange or bead E', which operates in thegroove in the bearing-surface of the cone and also in the groove of theshell and the iianges or beads E of the adjacent rollers bear againsteach other, as best shown in Fig. 2, and reduce to practically theminimum the portion of the surfaces of said rollers which comes incontact. Grooves e are formed in and around the rollers on oppositesides of and immediately adjacent to the flange or bead E. These groovesor depressions around the rollers on each side of the flanges allow theother part of the roller to wear down and still not block theadjusting-space between the cones and the shell or casing, which willnow be described.

The shell or casing F may be made in one solid casting or it may bedivided into upper and lower sections, as shown in Fig. 2, and thislatter construction may in some instances be preferred for conveniencein applying the lining of case-hardened steel to receive the bearing ofthe rollers and may also facilitate the fitting together of the severalparts of the bearing, the sections being suitably secured by bolts orotherwise after the several parts of the bearing have been properlyapplied for use. As shown, the shell or casing F fits around the seriesof rollers and is provided in its inner end with the threads at f forthe inner end ring G and at its outer end with the threads f for theouter end ring H and for the cap I, as shown in Fig. 1. Between thethreads f and f I form the tapering surfaces B3 and D3 opposite,respectively, the cones B and D, and these bearing-surfaces B3 and D3Within the shell may be lined, as shown at J, with casehardened steel,as best shown in Fig. l of the drawings, and these surfaces B3 and D3are provided with annular grooves b3 and d3, lying opposite the groovesb and d in the cones B and D and receiving the projecting iianges E onthe rollers, as will'be understood from Fig. l of the drawings.

In Fig. 4 the lining is in one piece, while in Fig. l it is shown Inadein separate end Seetions, which may be forced in tightly and becomepractically a part of the shell, so that the contraction and expansionwill not loosen them. It'will also be understood that where desired thelining may be composed of a series of rings, such as l, 2, 3, and 4, asshown in Fig. 11.

rIheinner end ringG screws into the threaded socket f of the shell andmay be provided with a felt washer at G to iit the shaft. The outer endring H screws into the threaded socket f' of the shell, and said rings Gand H are provided at g and L with curved surfaces to receive therounded ends e of the rollers.

By the described flanged construction of the rollers only the flanges ofthe adjacent rollers contact, thus preventing the rollers from rubbingtogether excepting at the iianged portion, which would be practicallythe same in some respects as a row of balls. It will also be noticedthat the grooves e on opposite sides of the flanges E' are important, asin case the rollers wear down where they bear between the surfaces B' orD and B3 or D3 the part opposite the grooves in the cones and shell willnot form shoulders to prevent the adjustment of the cones upon eachother when it is desired to adjust the bearing.

In practice all ,parts of the bearing may be made of hardened steelexcept the outer section or body of the shell.

To place the boxing together, the cones may be placed in the outershell, with the sections screwed together only enough to hold therollers, which may then be dropped in one end and the end ring screwedin and the boxing reversed and the rollers lilled in the other end, thecone-sections being then screwed together until the rollers all crowd totheir places. The bearing may'then be slid upon any shaft or axle havinga groove to receive the key a on the cone-section A. When the inventionis applied to the middle of a shaft, the cap I may be omitted.

Manifestly, the invention may be used in car-axle boxes or line-shafts,stationary machinery, propeller-shafts, and elsewhere wherever ajournal-bearing is employed.

The bearings may be made in various sizes alnd adapted to carry theweight imposed upon t lem.

Oil may be supplied through the openings L, and these openings can beclosed with plugs or caps, as will be understood from'the dr awings.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. The improvement in roller-bearings herein described comprising theinner cone-section having a key, and formed with a main portion havingan outer tapered bearing-surface and an annular groove in the same aboutmidway its ends, a threaded tubular extension from the smaller end ofsaid main portion` the outer cone-section screwed upon said threadedtubular extension and having the tapered bearing-surface and the annulargroove' in the same about midway its ends, the shell having taperedbearing-surfaces opposite those of the cone-sections and provided midwaybetween the ends thereof with annular grooves opposite those inthe'cone-sections and provided in the ends of said shell with threadedsockets for the end rings, the end rings screwed in said sockets andhaving the rounded grooves for the ends of the rollers, and the rollersbearing between the tapered bearing-surfaces of the cones and shell,said rollers being tapered from their larger toward their smaller ends,having the larger ends rounded and op# IOO `erating in the grooves ofthe end rings and and having annular grooves on opposite sides of saidflange as set forth.

3. In a roller-bearing the herein-described roller tapered from one endto the otherand provided at its middle with a projecting flange and onopposite sides thereof with annular grooves substantially as set forth.

4. The combination in a roller-bearing of the shell having the taperedbearing-surfaces, the cone-sections having the tapered bearingsurfacesopposing those of the shell, annularV grooves being provided in thebearing-surfaces for the flanges of the rollers, and the rollers havinganges operating in said grooves substantially as set forth.

5. A roller-bearing comprising the shell having bearing-surfaces, thecone-sections screwed together and having bearing-surfaces opposingthose of the shell, said bearing-surfaces having annular grooves, andthe rollers between said bearing-surfaces, and having annular anges andgrooves alongside the same substantially as set forth.

6. The combination of the shell having screw-threads at its inner andouter ends for the end rings and provided with the taperedbearing-surfaces having the annular grooves, the cone-sections havingthe tapered bearingsurfaces opposite those of the shell and provided insaid surfaces with the annular grooves opposite those of the shell, therollers having flanges operating in said grooves and the end ringsscrewing into the shell substantially as set forth.

7. In a roller-bearing the combination of the shell, the cone-sectionsone of which is screwed upon the other, the jam-nut, and the rollersoperatingA between the cone-sections and shell and having annular iangesand grooves alongside the same substantially as set forth.

8. The combination of the shell the cones, the .end rings connected withthe shell and having curved grooves for the ends of the rollers, and therollers having their ends rounded and operating at the outer edges of Ysaid end in the curved grooves of the end rings,

the inner edges of said ends of the rollers being unobstructedsubstantially as set forth.

9. The herein-described improvement in roller-bearings comprising theshell having the tapered bearing-surfaces, the cones having taperedbearing-surfaces opposing those of.

ROBERT FRANKLIN BOWER.

Witnesses:

WM. E. REILLY, MINER A. ATMUR

